Rubber Tire Storage

NFPA 13, 2014 Table 18.4(d) for rubber tire storage This table gives the requirements for the ceiling sprinklers. Could there be additional requirements (other than those on the table 18.4(d), for the ceiling sprinklers?). For example, if the shelves were solid, depending on the size of these shel

Re: CPVC pipe passing thru ordinary interstitial space

I missed to explain this part…. Thanks Steve. The concealed space will be sprinklered and yes I am proposing to install the sprinklers in the concealed space of the CPVC piping an as per the listing for CPVC pipe (i.e. piping max 6” above ceiling or insulation etc.) I’m also pointing to NFPA

RE: CPVC pipe passing thru ordinary interstitial space

Is the interstitial space combustible? If so, are you proposing to sprinkler the space with sprinklers that satisfy the listing limitations of the CPVC? Does the CPVC also supply the OH space below? [Steve Signature (3)] From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkle

CPVC pipe passing thru ordinary interstitial space

I have a job that’s a 2 story building with an A truss roof, 1st floor is retail and 2nd floor is residential, the entire building is being sprinklered as per NFPA 13. We want to install sidewalls with multiple CPVC risers and tie everything in 1st floor interstitial space, Question is if there

Re: Do sidewall sprinklers require 'errr... walls?

This is a 13R system. I was thinking that it's sort of implicit that there be a wall within 6" but for this project it would help if I could have a free floating line with sidewall sprinklers on it in the middle of the room.

RE: Hydrostatic Testing

My guess is that you are looking for it in Chapter 28. However, you’ll find it in Section 29.7. Chapter 29 covers Existing System Modifications. Larry Keeping From: Sprinklerforum On Behalf Of Joe Burtell Sent: December-12-18 11:04 AM To: sprinklerforum@lists.firesprinkler.org Subject: Hydrost

RE: Hydrostatic Testing

29.7 Testing. 29.7.1 Modifications to existing piping systems shall require testing at system working pressure. 29.7.1.1 Where modification is made to an existing system affecting more than 20 sprinklers, the new portion shall be isolated and tested at not less than 200 psi (14 bar) for 2 hours. 29

Hydrostatic Testing

Can anyone tell me why this section is missing from the 2019 of NFPA 13? 25.2.1.4 Modifications to existing piping systems shall require testing at system working pressure. 25.2.1.4.1 Where modification is made to an existing system affecting more than 20 sprinklers, the new portion shall be isola